{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-6EF42-0CH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-6EF42-0CH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-6EF42-0CH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-6EF42-0CH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1220-6EF42-0CH0, molded case circuit breaker, 4-pole, 200 A rated current at 40 °C, 220 kA breaking capacity at 240 V, line protection design with undervoltage release and auxiliary switches.","salesMarkdown":"The 4-pole construction covers three-phase-plus-neutral, so it's the right choice for TN-S or TN-C-S systems where the neutral needs overcurrent protection. Breaking capacity steps down with voltage: 154 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 17 kA at 690 V. For a 480 V panel with 65 kA available, this breaker fits only if the line side is impedance-limited or current-limited by an upstream device. ## Thermal derating and ambient range Above that, current must be reduced: 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. In a hot switchroom or outdoor enclosure in direct sun, the 70 °C operating limit is the absolute ceiling — the breaker will still function but at 176 A continuous. ## Built-in accessories and wiring The base switch mechanism is order code 3VA12206EF420AA0, meaning the trip unit, frame, and internal parts are a matched assembly — not a field-upgrade kit. The 140 mm width is the standard 4-pole SENTRON 3VA12 frame footprint — it occupies four 35 mm DIN-rail modules (each 17.5 mm plus spacing). Panel cutout and busbar spacing must accommodate the 158 mm height; verify clearance above for arc-chamber venting per Siemens installation instructions.","metaTitle":"Siemens 3VA1220-6EF42-0CH0 SENTRON MCCB, 200 A, 4-Pole, 220","metaDescription":"Siemens SENTRON 3VA1220-6EF42-0CH0 molded case circuit breaker, 200 A rated at 40 °C, 4-pole, 220 kA breaking at 240 V. Current production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"140 mm","Height":"158 mm","Maximum":"0 A","Minimum":"0 A","at 240 V":"220 kA","at 415 V":"154 kA","at 440 V":"75.6 kA","at 500 V":"30 kA","at 690 V":"17 kA","at 40 °C":"200 A","at 45 °C":"200 A","at 50 °C":"200 A","at 55 °C":"194 A","at 60 °C":"188 A","at 65 °C":"182 A","at 70 °C":"176 A","Depth [In]":"2.76 in","Width [In]":"5.51 in","Height [In]":"6.22 in","Trip Indicator":"Yes","Number Of Poles":"4","Voltage Trigger":"No","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"Molded case circuit breaker","Undervoltage Release":"Yes","Design Of The Product":"Line protection","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","power loss [W] / maximum":"44.5 W","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Of The Supplied Basic Switch":"3VA12206EF420AA0","Design Of The Auxiliary Switch":"2 auxiliary switches + 1 trip alarm switch HQ","Design Of The Auxiliary Release":"undervoltage release (UVR)","Ground-Fault Monitoring Version":"Without","Insulation Voltage / Rated Value":"800 V","Design Of The Overcurrent Release":"TM240","Design Of Short-Circuit Protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","protection class IP / on the front":"IP40","design of the N-conductor protection":"without","Of The Integrated Auxiliary Trip Unit":"3VA9608-0BB24","Product Function / Grounding Protection":"No","operating voltage / at AC / rated value":"690 V","operating voltage / at DC / rated value":"600 V","reference code / according to IEC 81346-2":"Q","Product Extension / Optional / Motor Drive":"Yes","Protection Function Of The Overcurrent Release":"LI","number of CO contacts / for auxiliary contacts":"3","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching Capacity Class Of The Circuit Breaker":"H","Mechanical Service Life (Operating Cycles) / Typical":"20 000","Type Of Electrical Connection / For Main Current Circuit":"nut keeper kit on both ends","Arrangement Of Electrical Connectors / For Main Current Circuit":"Front terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=568467&mlfb=3VA1220-6EF42-0CH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-6EF42-0CH0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 3VA1220-6EF42-0CH0?","answer":"Rated 200 A continuous at 40 °C, 4-pole, with breaking capacity of 220 kA at 240 V, 154 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 17 kA at 690 V. Insulation voltage is 800 V."},{"question":"How do I get pricing and availability for 3VA1220-6EF42-0CH0?","answer":"Submit an RFQ through this listing. The part is sourced through independent distribution; current pricing and lead time are confirmed at quote time."},{"question":"What accessories come with this MCCB?","answer":"Factory-installed undervoltage release (UVR), 2 auxiliary switches plus 1 trip alarm switch (HQ type). The base switch mechanism is 3VA12206EF420AA0."},{"question":"What are the physical dimensions of 3VA1220-6EF42-0CH0?","answer":"Height 158 mm, width 140 mm, depth 70 mm. The 140 mm width occupies four 35 mm DIN-rail modules."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-6EF42-0CH0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3VA1220-6EF42-0CH0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}